Arsenal boss Wenger unhappy with Santos' van Persie shirt swap

The Brazilian left-back and the Manchester United striker swapped shirts as they came off at half-time of the Red Devils' 2-1 win at Old Trafford on Saturday and it was an incident that came under plenty of scrutiny from the Gunners boss.

"I spoke about that but I don't want to make too much of a big story of that," said Wenger.

"I believe that was not the right thing to do at all, but that is not an explanation for our bad performance on Saturday."